The short list of interesting things for me would look something like: PHP, MySQL, JavaScript, TypeScript, HTML, CSS, Python, C#, NodeJS, NPM, Laravel, VueJS, React, jQuery, VBA, Excel, VSCode, DevOps, CI/CD, ... OS related info for Windows, MacOS and Linux. I have switched from being a shipbuilding engineer to being a full-time full-stack software engineer.
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